Document is current

Article History

Accepted: 8 October 2020

First Online: 27 October 2020

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

: The views in this article are those of the authors and do not necessarily reflect the views or policies of FAO or their own institutions.

: A. Wezel: writing, literature search, defining principles, editing; B. Gemmill-Herren: writing, literature search, defining principles, defining elements; R. Bezner Kerr: writing, literature search, defining principles; E. Barrios: writing, literature search, defining elements; A.L. Rodrigues Gonçalves: writing, defining principles; F. Sinclair: writing, literature search, defining principles.